KOTTO Carbon Filter Pack

Hello, it's Simon with WTI. This is a five-pack of activated charcoal filters by KOTTO. They are specifically meant for extracting fumes and smoke. For example, here I have used one with a 120 millimeter fan to construct a simple soldering smoke remover. It is soft material as you can see. I just put the screws right through it. And now I can solder here and it takes all the fumes away. It comes in this very... It comes in a neat package. You have five of them. They are of the right thickness. If you have a device that requires these, they will fit right in. Or you can just use them to build something your own. I feel they are very handy and useful, but that is just my point of view.